Big Time Gaming Slots | Free Slots by Big Time Gaming

Big Time Gaming was founded in 2011 in Sydney, Australia, by Nik Robinson, a veteran of the gaming industry and former CEO of NewTech Media. The studio began as a boutique developer specializing in innovative slot design, and in just a few years, BTG became a global name by revolutionizing the way online slots operate.

Their groundbreaking Megaways engine, first introduced in Dragon Born and popularized through Bonanza, changed slot gameplay forever. The system dynamically changes the number of symbols on each reel during a spin, creating up to 117,649 ways to win, a mechanic now licensed to major providers like NetEnt, Pragmatic Play, and Blueprint.

In 2021, Big Time Gaming was acquired by Evolution Group, joining other prominent brands such as NetEnt and Red Tiger.

Big Time Gaming’s impact on the iGaming industry is enormous. The studio’s creation of Megaways earned it multiple accolades, including:

• Shortlisted for Slot Supplier (5+ years category) at the 2025 EGR B2B awards

BTG is known for fairness, transparency, and innovation, making it one of the most influential developers in modern slot history. Their titles consistently top online casino charts for both popularity and long-term engagement.

Below are some of Big Time Gaming’s best-known and most loved slots, showcasing the studio’s creativity and innovation.

• Theme: Mining
• Format: 6 reels with up to 7 symbols per reel; 117,649 ways to win
• RTP & Volatility: ~96% RTP; high volatility

Bonanza Megaways is BTG’s defining slot and the game that popularized the Megaways engine globally. Each spin delivers a variable number of symbols per reel, creating constantly shifting win potential. 

Cascading reactions remove winning symbols, allowing new ones to drop in. Free spins are the highlight, offering an unlimited progressive multiplier and retrigger potential. 

Its explosive volatility and huge maximum ways to win made it a long-lasting favourite among Megaways fans.

• Theme: Music
• Format: 6 reels, 4,096 ways to win
• RTP & Volatility: ~96.2% RTP; high volatility

A fan-favorite inspired by the Electric Six song, Danger High Voltage delivers wild energy and two free spin modes: High Voltage Free Spins and Gates of Hell Free Spins. Both modes offer sticky wilds, multipliers, and adrenaline-fueled gameplay. 

It’s one of BTG’s most creative and high-tempo releases: loud, chaotic, and endlessly entertaining.

• Theme: TV
• Format: 6 reels; 117,649 ways to win
• RTP & Volatility: ~96% RTP; high volatility

The licensed Who Wants to Be a Millionaire Megaways slot brings the high-pressure tension of the TV game show into the Megaways system. Its blend of familiar branding, high-risk features, and Megaways pacing helped establish it as one of BTG’s most recognizable titles.

Players trigger free spins and can gamble up the “Hot Seat” ladder for more spins, mimicking the famous question-format tension. During free spins, win multipliers increase after every cascade, creating significant potential. 

• Theme: Fairytale
• Format: 5 reels expandable up to 12 rows in bonus; 248,832 ways to win
• RTP & Volatility: ~97% RTP; high volatility

Inspired by Alice in Wonderland, White Rabbit Megaways is one of BTG’s most inventive and visually rich titles. The combination of whimsical visuals, escalating reel growth, and high winning potential has kept it a top-tier Megaways game.

The free spins mode is the core attraction: Cupcake symbols expand reel height up to 12 rows, potentially unlocking enormous Megaways totals. Its Feature Drop system allows players to buy the bonus, a mechanic that BTG helped pioneer. 

Big Time Gaming operates under the strict oversight of the Evolution Group. It holds licenses from major regulators, including the UK Gambling Commission, the Malta Gaming Authority, and the Alderney Gambling Control Commission.

All BTG games are independently RNG-tested and certified to guarantee fairness and true randomness. The company partners exclusively with licensed online casinos that promote responsible gambling practices.

Players can expect access to tools such as deposit limits, session reminders, and self-exclusion options.